This boot has been designed in conjunction with the Australian cricket academy....... Lightweight synthetic leather and nylon mesh upper High cut heel segment to accommodate Achilles support....... The upper also uses the locking strap system around the heel....... Single density cmEVA is used in the midsole for added stability....... The PU 3 plate system is unique to Asics and gives the boot greater flexibility not found with normal stud plates....... Removable EVA sockliner ....... Comes with both screw in metal and PU soft studs....... Asics Gel cushioning system: Rearfoot GEL, Injection PU outsole.......